Corn-planter



` (Model.) Y A D. A. YOAKAM.

GORN PLANTER. No.265,911. I Patented'Oot. 10, 1882.

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UNITED STATES PATENT OFFICE.

DAVID A. YOAKAM, O VVINDHAM, ASSIGNOR TO HIMSELF AND JOSEPH YOAKAM, OF WASHINGTON TOWNSHIP, JOHNSON COUNTY, IOVA.

CORN-PLANTER.

SPECIFICATION forming part Aof Letters Patent No. 265,911, dated October 10, 1882. Application flied March e9, rss2. (Model.)

To all whom t't may concern Be it known that I, DAVID ALBERT YoAK- AM, of Windham, in the county of Johnson and State of Iowa, have invented a new and Improved Corn-Planter, of which the following is a full, clear, and exact description.

My invention relates to improvements in corn-planters; and it consists in the novel construction and combination of parts, as hereinafter more fully 4set forth.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in both the gures.

Figure 1 isa longitudinal sectional elevation of my improved corn-planting machine, and Fig. 2 is a plan view of the same with a part broken out. y

A represents a pair of sled-runner-shaped furrow -openers, located a suitable distance apart, equal to the distance of the rows of corn from each other, and connected by bars B and the seed-box plate C, said runners being made of two plates each, a et, joined together at the front points, b, but diverging rearward therefrom, so that near the rear ends, where they have partitions d and e across the space between them, suitable conductors, D, areformed, for delivering the grain from the hoppers E into the open furrows just in advance of the falling of the furrow-rid ges back into the furrows behind said runners to cover the corn.

F represents a wheel located in the space between the two plates a of the runners A, about midway between the ends, one in each runner, and on a shaft, G, which is revolved by them to work the seed-dropping slide H by means of a tappet-wheel, I, and the vibrating bar J. The shaft G is vertically adj ustable 'rn these runners by means of the slots K and adjustable boxes L, the latter arranged to be shifted up and down on the runners and provided with fastening-screws M.

The front bar, B, and also the seed-boxes E, are att-ached to the A-frame N, to which the tongue is to be attached at O on the front, said frame N being jointed behind the seedboxes to the roller truck-frame P by the tenons Q and slots R and by the adjusting-levers S, said levers being pivoted to the vbars of frame N at T, and to the truck-frame at V,

and said levers range along up by the sides of the drivers seat W, and are provided with racks X, to catch and hold them, so that by detaching the levers from the said racks and swinging them forward the runners A will be let down at the rear ends, and by swingingthe levers the other way the said runners will be raised, their weight being transferred to some extent to the truck-rollers Y, which run over and pack the earth on the seeds, thereby regulating the depth of the furrows. The levers S maybe constructed to springinto the'notches of the rack-bars X, to be engaged and held by them, or they may have trip-latches common to such devices.

The tappet-wheel I is constructed with its points or tappets arranged to throw both ways alternately, and they are designed to throw the feed-slide at intervals of time suited to the required distance apart the seeds are to be dropped. The dropping-slide H is a plain box working under the caps f, covering the holes g in the bottoms ofthe seedLhoppe-rs, and having holes coinciding with said holes g when in the middle position, which holes iill with seeds when shoved eitherway from under said covers f, and discharge the same through holes g when passing over them. I make no claim, however, to this form of seed-dropper; but I use it in my improved corn-planter and l:in connection with the sled-runner furrowmakers in preference to the wheel seed-dropping devices, because in this arrangement the seeds are always dropped the same distances apart, whereas in the wheel-droppers there is irregularity when the ground is rough, because of the irregular motion of the wheels up and down the hills and hollows.

By the use of this improved planter the expense of furrowing the ground in advance of the planter by an extra hand is avoided, and by making one mark or furrow at the startingpoint will save the expense of the wire used by the check-rower, also the trouble of moving the wire at every starting-point.

I am aware that seed-slides have heretofore been operated by tappet-wheels, and that runners havebeen commonly used on planters, and that two parallel plows with a space between them have been employed in planters with hoppers over the space between the plows,

IOO

between which space the seed passes to the ground, and I therefore lay no claim to such inventions. f `4 Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a corn-planter, the combination, with the runners A, composed of the. rearwardly-diverging plates a, a, provided with the partitions d e, und the seed-slide H, of the wheels F, journnled in the cross-shaft G between the plates a a, substantially as and for the purpose set forth. 2. In a corn-planter, the combination, with the runners A, composed of the rearwardlydiverging plates a a., and the hoppers E, of the shaft G, carrying the wheels F, arranged between the runnerplates and provided with central tappet-wheel, Land seed-slide H, provided with the vibrating bar J, substantially as and for the purpose setforth.

v3. In a. corn-planter,the combination, with the frame N and the truek-frame P, of the 1ever S, pivoted to both of the frames N P, and having its end extended upwardly, and serving the double purpose ot' a hinge and lever, substantially as set forth.

DAVID A. YOAKAM. Witnesses: A

G. A. EWING, P. H. DUFFEY. 

